Xiaoyi and Yaqi are international students, but their boring study life makes them feel extremely tired. They prefer to linger in the casino. To celebrate the last day of the semester, they come to the roulette that they often visit again. Xiaoyi, who is handsome and charming, is shouting, and Yaqi, with big eyes and baby face, is also looking at the color nervously. They are rich in family and don’t need to worry too much about money. Everything is just for enjoyment.